Program: GN-2007B-Q-27

The Swift satellite provides rapid (~1 minute) and precise (~7 arcsec) positions for GRBs, allowing high-z candidates to be identified while the source is relatively bright. Despite this, searches for high-z GRBs are generally disorganised, relying on disparate observations from small telescopes. We propose an aggressive campaign utilizing Gemini North to identify gamma-ray bursts at z>6, and where possible obtain spectra. We will target every possible GRB with izJHK imaging, allowing rapid identification of even faint z>6 candidates. We will obtain spectra of candidates with GN+GMOS to investigate the epoch of reionisation, and measure abundances. This approach of coordinated observations from a single reliable telescope stands the best chance of identifying and determining the distribution and frequency of GRBs at the highest redshifts.